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Observational study to evaluate the systemic effects of radiotherapy in patients with metastatic renal cell carcinoma receiving immunotherapy

Observational Study on the Abscopal Efect by Ultra-hypofractionated Radiation Therapyin combination with Immune Checkpoint Inhibiters for Metastatic Renal Cell Carcinoma - AURICRE study

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000059652
Enrollment
145
Registered
2025-11-10
Start date
2025-11-10
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Renal Cancer

Interventions

None listed

Sponsors

University of Yamanashi
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Patients aged 18 years and above with metastatic renal cell carcinoma 2. Patients currently receiving immune checkpoint inhibitor (ICI) therapy who are assessed as having iCPD or iSD according to iRECIST 3. Presence of two or more clinically measurable lesions (assessed by CT, MRI, physical examination, or visual inspection) Note: Osteosclerotic lesions without measurable soft-tissue components are excluded 4. Planned to undergo IGU to the target lesion 5. Provided written informed consent after receiving sufficient explanation of this study Note: Proxy signature is permitted if the patient is physically unable to sign

Exclusion criteria

Exclusion criteria: 1. Patients with active double cancers (synchronous double cancers or metachronous double cancers with a disease-free interval within 2 years). However, carcinoma in situ or intramucosal carcinoma considered cured by treatment, and the following tumors even if within 2 years of disease-free interval are not excluded: gastric cancer stage 0-II (UICC), prostate cancer stage I-III, colorectal cancer stage 0-II, esophageal cancer stage 0-I, breast cancer stage 0-II, endometrial cancer stage I-II, cervical cancer stage 0-II, and thyroid cancer stage I-III. In addition, any cancer with a disease-free interval greater than 2 years is not excluded regardless of stage. 2. Patients with serious comorbidities, such as: - severe cardiac disease - uncontrolled diabetes mellitus despite continuous insulin therapy - myocardial infarction within 6 months - uncontrolled hypertension - active infections (bacterial, viral, or fungal) - diarrhea (watery stool), paralytic ileus, or bowel obstruction - autoimmune disease - any other severe comorbid condition 3. Patients with clear evidence of idiopathic interstitial pneumonia (usual interstitial pneumonia pattern) on chest X-ray or CT 4. Patients with acute-phase pneumonia 5. Patients with psychiatric disorders or psychiatric symptoms judged to make study participation difficult

Design outcomes

Primary

MeasureTime frame
Abscopal response rate (ARR) at 1 year after IGU

Secondary

MeasureTime frame
Secondary Endpoints 1. Tumor shrinkage rate of irradiated and non-irradiated lesions at each assessment time point during follow-up 2. 1-year overall survival (OS) 3. 1-year disease-specific survival (DSS) 4. 1-year progression-free survival (PFS) Exploratory Endpoint 1. To evaluate the association between treatment response and changes in circulating cytokine levels before and after IGU

Countries

Japan

Contacts

Public ContactZhe Chen

Faculty of Medicine, University of Yamanashi Department of Therapeutic Radiology

chenzhe@yamanashi.ac.jp055-273-1111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 9, 2026